Journal-bearing for stone and ore crushers



' (No Model.)

. P. W; GATBS'I JOURNAL BEARING FOR STONE AND ORE GRUSHERS.4

No.zgal( Patented1111116201882;

Wnessejs: l

UNITED STATES PATENT OFFICE.

Patterns W. GATEs, or cnrcAGo, ILLINOIS.

JOURNAL-BEARING FOR STONE AND ORE CRUSHERS.

SPECIFICATION forming part of Letters Patent No. 259,681, dated June 20, 15.82,

Application filed April 6, 1882. (No model.)

.To all whom 'it may concern Be it known that I, PHILETUs W. GATES, a citizen of the United States, residing at Ghicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Journal-Bearings for Stone and Ore Crushers, of which the following is a specification.

My invention relates specially to a shaft having a conical crusher-head between its ends, and which has its lower end connected to a revolving eccentric, which gives the shaft and conical Crusher-head a revolving gyrating movement, while its upper end is fitted to move in a stationary jOurDaLbearing, and the object of my invention is to secure a continuous straight bearing during the action of the Crusher-head from the bottom to the top of the journal-bearing along the working-surface of the journal of the shaft, while the requisite accommodation for the gyratory movement of the shaft is afforded, and this object I attain by the meansV hereinafter described, repre-M sented in the accompanying drawings, and

claimed. n

In the accompanying drawings, my invention is shown applied to av stone-breaker in common use, Figure 1 being a vertical central section of said machine and of my invention applied to the top of thefsame; and Fig. 2, a detail diagram, in horizontal section, of the lining of the upper journal-bearing with the journal end of the crusher-shaft in the same, the conical crusher-head below the said bearing being shown by full lines and the lower portion of the shaft below the cone represented by dotted lines.

The frame A, flaring concave B, conical Crusher-head C and its shaft C', the inclined discharging and guarding chute D, with flange a and loose collar b, the oil-supplying hood or dust-excluding collar E, oil-'step box F, eccentric bearingG, the bevel drivin g-wheels H and I, and adjusting-screw J are of ordinary construction, and operate in the usual manner and require no further description. Any` other form, combination, and arrangement of these well-known parts may be adopted in connection with my invention so long as the same produce a revolving gyratory motion of the conical crushen'head.

The invention which I have made is the combination, with ajournal-bearing of suitable form, ota revolving gyrating crusher-shal't, G, having a journal, c,of taper form at its upper end-that is, shaped from its base c to its top c2 to correspond to a truncated cone, as shown. This conical journal is provided with a cylindrical journal-bearin g, d, which is formed within the cap portion A of the frame A of the machine. rlhe lining d of this bearing may be of white or chilled metal or any other suitable metal, and it may be cast in segmental sections or in one piece, and the diameter of its bore is equal at all points to the base dialneter ot' the conical journal, and larger at all other points than a'nyz'other portion of said journal. In fut-ing 'it to thegv bearing d there may be a space, f, provided between its upper end and the top'of the bearing'd, in order to admit of its rising when the shaft C', with crusher C, is raised to regulate the size to which the machine shall break or crush the v.

materials to be operated upon.

It might in some cases be practical to not line the bearing d, in which case the journal c would be constructed of a diameter to insure contact between it and the bearing when the cone is in the act of crushing or breaking stone.

From an inspection of'the drawings it will be seen that the taperingjournal c of the shaft C', at one portion of its periphery, stands parallel and in contact with the vertical surface of the lining d of the journal-box, on account of the eccentric having thrown the axis of the shaft C out of a vertical line with the horizon, and that while this is so all other portions of this journal are inclined and out of contact with the bearing-lining, as indicated at c3. It will also be understood that the same character of bearing contact between every other portion of the tapering journal of the nal of the gyratiug Crusher-shaft may be imf2 women.

crushinggiis performed. By my invention the most effective bearing is secured for sustnini parted to theheariug-surfueeof the journalbearing', while a cylindrical instead of a tapering form may be imparted to the journal. Vith this change in construction theoperntion andresult of my invention will be substantially the saine as with the special con struction described and shown. y

What I claim as my invention, and desire to secure by Letters lutcnt, is-

l. A gyrnlting Crusher-shaft having` the tat peringjournal 0, in combination with :L jourf `ual-bearing?, whereby only a. portionof said tapering journzrl stands parallel and injeontaet with the vertical surface oi' said bearing during 2 5 the gyr-.ition `of the shaft, subst-.tntialljr as de@ scribed. i

2. The combination `ci thejournal-bearing d, adjustable lining d', and the gyrating Crusher shaft havingojcnrnal, o, only .a portion of 3o which stands peralleland in Contact with the journal-bearing during `the gyration of the shaft, the whole constructed and operating substantially as and 'orthe purpose described.

PHILETUS W. Grirns.

Witnesses:` i

.l L. FARGO, Gmo. W. GATES. 

